Home / 1,387,893.33-2,081,561.13-489,371.67

Finding the Fourth Proportional to 1,387,893.33, 2,081,561.13 and 489,371.67

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Solution

The fourth proportional to 1,387,893.33, 2,081,561.13 and 489,371.67 is: 733,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,893.33 : 2,081,561.13 = 489,371.67 : x
  2. Step 2: Convert to fraction form
    1,387,893.33/2,081,561.13 = 489,371.67/x
  3. Step 3: Cross multiply
    1,387,893.33x = 2,081,561.13 × 489,371.67
  4. Step 4: Simplify right side
    1,387,893.33x = 1,018,657,046,395.19
  5. Step 5: Solve for x
    x = 1,018,657,046,395.19/1,387,893.33
  6. Step 6: Final answer
    x = 733,959.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.